Adapting Raman spectra from laboratory spectrometers to portable detection libraries

Area of Science:

• Analytical Chemistry
• Spectroscopy

Background:

• Raman spectroscopy is a powerful analytical technique.
• Field-deployable spectrometers offer portability for in-situ analysis.
• Data compatibility between laboratory and field instruments is crucial for practical applications.

Purpose of the Study:

• To adapt high-resolution laboratory Raman spectral data for use on a field-deployable spectrometer prototype.
• To investigate the feasibility of data portability between different Raman spectrometer systems, particularly in the near-infrared (NIR) region.

Main Methods:

• Processing laboratory Raman spectral data (1064 nm FT-Raman and 785 nm dispersive) into a format compatible with a 1064 nm field spectrometer.
• Addressing device-dependent spectral resolution, wavenumber shifts, and relative intensity response differences between instruments.

Main Results:

• Successful adaptation of laboratory Raman spectral data for a field spectrometer prototype.
• Minimal effects observed due to differing excitation laser wavelengths (1064 nm vs. 785 nm).
• Demonstrated feasibility of near-infrared (NIR) Raman data portability between different systems.

Conclusions:

• Laboratory-collected Raman spectral data can be effectively processed for field spectrometer libraries.
• Near-infrared (NIR) Raman spectral data exhibits a degree of portability across different spectrometer systems.
• Careful calibration and consideration of spectral parameters are necessary for reliable data transfer between instruments.